Yes, you can upgrade the firmware on your 18M by using COBRA's reprogramming software. We provide the firmware updates and the reprogramming software free of charge; however, you do need to purchase a Wireless Reprogrammer. For more information or to purchase, please visit our Wireless Reprogrammer product page.
For instructions on how to perform a firmware update please see How do I update the firmware on my equipment?
There is also the option to send your equipment to COBRA for an upgrade. There is no charge for the upgrade itself but we do ask that shipping be covered by the end-user. To request a return authorization number to send your equipment in for upgrade please email email@example.com.